Electric fan



FIG. 1 is a perspective view.

FIG. 2 is a front view.

FIG. 3 is a rear view.

FIG. 4 is a right view, which is the mirror image of the left view.

FIG. 5 is a top view; and,

FIG. 6 is a bottom view.

In all figures, all parts rendered in dashed line illustrate portions of the electric fan and are not part of the claimed design. 

CLAIM The ornamental design for an electric fan, as shown and described. 